Designing the route of the roller coaster is undoubtedly a very important task. how to let passengers experience the thrills of the roller coaster safely is a question you must think about. the roller coaster must pass through the green circle and avoid the red circle. you need to draw a line the correct and interesting route, are you ready to meet the challenge of this designer? now we provide a chance for you to design the route for the tourists by drawing in make a roller coaster!
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